<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      ul {
        list-style: none;
      }
      li {
        float: left;
        width: 10px;
        height: 10px;
        border: 1px solid #ccc;
        margin-right: 5px;
      }
    </style>
  </head>
  <body>
    <div id="root">
      <ul>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
        <li></li>
      </ul>
      {{msg}}
    </div>
    <script src="./lib/vue-2.6.12.js"></script>
    <script>
      new Vue({
        el: '#root',
        data: {
          msg: '一般',
          grade: 0,
        },
      })
    </script>
  </body>
</html>
